Conductive 4-electrode conductivity sensor Type...

JUMO tecLine CR-4PConductive 4-electrode conductivity sensor

Type 202930

B 202930.0Operating Instructions

2012-04-05/00502496

WARNING:

Incorrect measurement values or failure of the instrument or a transmitterconnected to it, could potentially cause dangerous, imprecise dosing or a systemmalfunction! Suitable preventive measures to stop this happening must be in place.

Note:

Please read these operating instructions before commissioning the instrument.Keep the manual in a place which is accessible to all users at all times.

If any difficulties should arise during startup, please do not tamper with theinstrument in any way. By doing so, you could endanger your rights under theinstrument warranty! Please contact your supplier.

Contents

1 Typographical conventions ...................................................... 51.1 Warning signs ..............................................................................................51.2 Reference signs ...........................................................................................5

2 Description ................................................................................ 6

3 Instrument identification .......................................................... 83.1 Nameplate ....................................................................................................83.2 Type description ..........................................................................................83.3 Accessories ..................................................................................................9

4 Mounting .................................................................................. 104.1 General .......................................................................................................104.2 JUMO PEKA process connection adapter .................................................114.3 Mounting suggestions ................................................................................11

5 Installation ............................................................................... 155.1 Electrical connection ..................................................................................155.2 Terminal assignment and wiring colors .....................................................155.3 CR-4P cable ...............................................................................................165.4 Connection example ..................................................................................17

6 Calibration ............................................................................... 196.1 Notes ..........................................................................................................196.2 General .......................................................................................................196.3 JUMO AQUIS 500 CR settings ..................................................................19

7 Maintenance/troubleshooting ............................................... 207.1 Cleaning the conductivity sensor ...............................................................207.2 Troubleshooting .........................................................................................21

8 Technical data ......................................................................... 22

1 Typographical conventions

1.1 Warning signs

1.2 Reference signs

Danger

This symbol is used when there may be danger to personnel if theinstructions are ignored or not followed correctly!

Caution

This symbol is used when there may be damage to equipment or data if theinstructions are ignored or not followed correctly!

Note

This symbol is used to draw your special attention to a remark.

abc1 Footnote

Footnotes are remarks that refer to specific points in the text. Footnotesconsist of two parts:

A marker in the text and the footnote text.

The markers in the text are arranged as consecutive superscript numbers.

✱ Action instruction

This symbol indicates that an action to be performed is described.

The individual steps are marked by this asterisk.

Example:

✱ Connect the cable.

5

2 Description

General

Conductive conductivity sensors are used in conjunction with suitabletransmitters in industrial analysis measurement technology to determine theelectrolytic conductivity of liquids.

The JUMO tecLine CR-4P fills the gap between conductive conductivitymeasurement with two-electrode measuring sensors, and inductiveconductivity measurement.

Four-pin technology makes it possible to cover a very wide measuring rangefrom about 1 µS/cm to 600 mS/cm, with just one measuring sensor.

The hygienic design of the sensor and the EHEDG-certified system for processconnection (JUMO PEKA), mean that it can be used in pharmaceutical andfood technology without difficulty. JUMO PEKA is an adapter system thatcombines the measuring sensor with the process connection. All the materialsare physiologically safe, and meet FDA standards.

Stainless steel electrodes are inserted into a circular, plastic body. The processseal provided as standard is an EPDM O-ring. A fast-response temperatureprobe delivers information about the process temperature to the measurementamplifier. Electrical connection is made via an M12 connector.

The measuring sensor is available in three fitting lengths, for optimuminstallation in different pipe diameters. The measuring sensor can also beinstalled in container walls. No incident flow is required to make it work, but isrecommended for fast, stable measurement values and to prevent theaccumulation of deposits.

A certificate of quality is included among the items supplied (exact cellconstant, FDA approval for the material, typical surface roughness, etc.).

Operative range

Their vast measuring range of 1 µS/cm to 600 mS/cm, allows the sensors tobe used in washing processes in food and drink applications, pharmaceuticalsand biotechnology, where the different conductivities have to be safelyrecorded by a measuring system (e.g. CIP/SIP applications, reverse processesin ion exchangers, phase separation, bottle cleaning plants, process water).

Note

Used in combination with the JUMO AQUIS 500 CR transmitter/controller, asper data sheet 202565 and JUMO PEKA process connection adapters as perdata sheet 409711.

Key features

• Vast measuring range

• EHEDG-certified process connections (clamp, Varivent®, aseptic NKS)

• CIP/SIP capability

• Design complies with EHEDG and FDA standards

• Certificate of quality included

6

2 Description

Function

The measuring sensors have two pairs of electrodes. The transmitter appliesalternating current at the outer pair of electrodes. A voltage is released at theinner electrodes - subject to the conductivity of the measuring material. Thetransmitter acquires the voltage and uses it to calculate the electrolyticconductivity value. Functionally, excitation and measurement are keptseparate. This has some advantages compared to 2-electrode measuringsensors, as the effects of polarization recede into the background. To a largeextent, incoming resistances are automatically compensated. Measurementerrors as a result of contamination or deposits, are reduced.

Measuring sensors

voltage/current

voltage

current/voltagecontrol

voltage measurement

(1) (4)(2) (3)

Description M12 connector pin(1) Current supply, outer electrode 1 6(2) Voltage tap, inner electrode 1 7(3) Voltage tap, inner electrode 2 3(4) Current supply, outer electrode 2 4(5) Pt1000 temperature probe 1, 2 and 5

(2) (3)

(4)

(4)

(1)

(4)

(1)

(1)

(5)

7

3 Instrument identification

3.1 NameplateOn the measuring sensor

3.2 Type description

The date of manufacture is encoded in "F-Nr." (serial number):0942 means year of manufacture 2009/calendar week 42.

JUMO GmbH & Co. KGFulda, Germany www.jumo.net

Typ: 202930/10-1005-997-83/000VARTN: 20/00123456F-Nr.: 01234567 01 0 0942 0002Cell M: 0,30 1/cm

(1) Basic type202930 JUMO tecLine CR-4P

Conductive 4-electrode conductivity sensor

(2) Basic type extension10 Short design20 Medium design30 Long design

(3) Temperature compensation1005 Pt1000

(4) Electrode material31 Stainless steel 1.4435 (316L)

(5) Process connection1

1 Process connection adadpters (see "Accessories") must be ordered separa-tely.

997 JUMO PEKA

(6) Electrical connection2

2 The CR-4P cable is required for electrical connection (see "Accessories")!

83 M12 connector

(7) Extra codes000 none

(1) (2) (3) (4) (5) (6) (7)Order code / - - - - /Sample order 202930 / 10 - 1005 - 31 - 997 - 83 / 000

8

3 Instrument identification

3.3 AccessoriesDesignation Sales No.CR-4P cable, 5 m, made up, with M12 connector 00528699CR-4P cable, 10 m, made up, with M12 connector 00528700

JUMO PEKA process connection adapter for

Material Sales No.

Varivent DN 40-125 Stainless steel 1.4435/316L 00445046Varivent DN 40-125 Stainless steel 1.4435/316L;

Ra < 0,8 µ with certificate EN 10204-3.1

00577961

Clamp DN 25/32/40 Stainless steel 1.4435/316L 00445047Clamp DN25/32/40 Stainless steel 1.4435/316L;


00577998

Clamp DN 50 Stainless steel 1.4435/316L 00445037Clamp DN 50 Stainless steel 1.4435/316L;


00577997

Aseptic DN 40 Stainless steel 1.4435/316L 00446458Aseptic DN 40 Stainless steel 1.4435/316L;


00577995

Aseptic DN 50 Stainless steel 1.4435/316L 00445035Aseptic DN 50 Stainless steel 1.4435/316L;


00577979

Aseptic NKS DN 40 Stainless steel 1.4435/316L 00447555Aseptic NKS DN 40 Stainless steel 1.4435/316L;


00577999

9

4 Mounting

4.1 GeneralMounting location

Find a location that ensures easy accessibility for the later calibration.

The fastening must be secure and must ensure low vibration for the instrument.

The operating conditions (temperature, pressure, chemical composition of themeasuring material, etc.,) must not be allowed to damage the measuring sensor.

The measuring sensor must not be modified mechanically (e.g. shortened,drilled, ground).

A minimum distance of at least two meters must be maintained wheninstalling several JUMO tecLine CR-4P type conductivity sensors.

Installation position

The conductivity sensor can be mounted in any position. But it is essential tomake sure that the measuring sensor electrodes are fully immersed in themeasuring material.

Incident flow

No incident flow is required to make the conductivity sensor work, but isrecommended for fast, stable measurement values and to prevent theaccumulation of deposits. Structural measures must be taken to prevent flowseparation or gas bubbles in the measuring material.

Immersion length

The immersion length (EL) of the conductivity sensor must be in keeping withthe installation situation.

(1) Width across flats 27(2) JUMO PEKA process connection

A suitable process connection adapter is an essential requirement ofinstallation, see below.

(3) 21 × 2.5 O-ring (EPDM)

Immersion length EL Total length GL Type18 126 202930/1038 146 202930/2048 156 202930/30

M28x1.5

ø22.5

GL

EL

(1)(2)(3)

10

4 Mounting

4.2 JUMO PEKA process connection adapterThe EHEDG-certified system for process connection – JUMO PEKA – allows itto be used in pharmaceutical and food technology without difficulty. JUMOPEKA is an adapter system that combines the measuring sensor with theprocess connection. All the materials are physiologically safe, and meet FDAstandards.

4.3 Mounting suggestionsVarivent®

(1) JUMO PEKA process connection adapter Varivent® DN 40-125, sales no.: 00445046

(2) JUMO tecLine CR-4P conductivity sensor.(3) The Varivent® housing DN xx

is not supplied by JUMO and must be provided by the customer!

Varivent housing DN Diameter D L Type40 38 3 202930/1050 50 965 66 1880 81 24.5100 100 34

øD

ø68

L 18

21

.5(2)

(1)

(1)

(3)

(3)

11

4 Mounting

Clamp

(1) JUMO PEKA process connection adapter (1a) Clamp DN 25/32/40, sales no.: 00445046(1b) Clamp DN 50, sales no.: 00445037

(2) JUMO tecLine CR-4P conductivity sensor.(3) The DN xx clamp adapter, DIN 32676

is not supplied by JUMO and must be provided by the customer!(4) The clamp DN xx T-piece, DIN short, similar to DIN 11852


Clampadapter DN

T-pieceDN

DiamterD

DiamterD1

L Type

25 32-25 32 26 5 202930/2040-25 38 0 202930/3050-25 50 765-25 66 1580-25 81 20100-25 100 30

50 65-50 66 50 1580-50 81 20100-50 100 30

21

.5 ø50.5

øD1

øD L

21

.5 ø64

(2)

(1a)

(1)(3)

(1b)

(4)

12

4 Mounting

Aseptic

(1) JUMO PEKA process connection adapter (1a) Aseptic DN 40, sales no.: 00446458(1b) Aseptic DN 50, sales no.: 00445035

(2) JUMO tecLine CR-4P conductivity sensor.(3) The DN xx threaded adapter, DIN 11864

is not supplied by JUMO and must be provided by the customer!(4) The DN xx T-piece


Threadedadapter

T-pieceDN

DiameterD

DiameterD1

L Type

40 50-40 50 38 10 202930/3065-40 66 1880-40 81 27100-40 100 37

50 65-50 66 50 1880-50 81 27100-50 100 37

øD L

25

25

ø67

ø55

øD1

(2)

(1a)

(1)

(4)

(1b)

(3)

13

4 Mounting

Aseptic NKS

(1) JUMO PEKA process connection adapter Aseptic NKS DN 40, sales no.: 00447555

(2) JUMO tecLine CR-4P conductivity sensor.(3) Collar clamp adapter NKS DN 40, Form A, DIN 11864-3

is not supplied by JUMO and must be provided by the customer!(4) The DN xx T-piece


Collarclampadapter

T-pieceDN

DiameterD

DiameterD1

L Type

NKS

DN 40

Form A

50-40 50 38 10 202930/3065-40 66 1880-40 81 27100-40 100 37

25

øD1

øD

ø64

L

(2) (1)

(1)

(4)

(3)

14

5 Installation

5.1 Electrical connection

• Lay the input, output, and supply lines so they are physically separatedfrom each other and are not parallel

• If possible, use the CR-4P cable (see Accessories) to connect theconductivity sensor; do not lay the connecting cable close to componentsor lines through which current is flowing

• The cables must have an uninterrupted run (do not route them via terminalblocks or similar arrangements)

• No other consumers can be connected to the power terminals of theinstrument

• The conductivity sensor is not suitable for installation in areas with anexplosion hazard

• It is essential to comply with the electrical connection instructions in theoperating manual of the transmitter that is being used

• Apart from faulty installation, incorrect settings on the transmitter may alsoaffect the proper functioning of the subsequent process or lead to damage;you should therefore always provide safety equipment that is independentand it should only be possible for qualified personnel to make settings

5.2 Terminal assignment and wiring colors

Incorrect connection of the conductivity sensor will produce inaccurate measurement results!

Connection for M12 connector CR-4P cablePin Assignment Color

Pt1000 temperature probefor temperature compensation

1

2

5

GN

YE

BN

Voltage tap inner electrode 2 3 PKCurrent entry outer electrode 2 4 BLCurrent entry outer electrode 1 6 RDVoltage tap inner electrode 1 7 GRNCWarning: The shielding of the cable has to be connected to the transmitter only – not to the sensor!

ϑ

1

2

51

7

65

2

8

3

4

15

5 Installation

5.3 CR-4P cableUse only the CR-4P cable for conductivity sensor connection:

• CR-4P cable, 5 m, made up, with M12 connector Sales no.: 00528699

• CR-4P cable, 10 m, made up, with M12 connector Sales no.: 00528700

For metrological reasons, the maximum cable length is limited to 10 m!

M12 cable socket: metal, 8-pinCable diameter: 7.5 mmCable material: PUR, blueAmbient temperature: -30 to +80 °CCable length: 5 m or 10 m

YE

ø7.5

GN

BN

WH

BL

GR

PK

RD

16

5 Installation

5.4 Connection example

Cable routing in he transmitter

✱ Run the connecting cables through the JUMO AQUIS 500 CR cable glands.

✱ Locate the measuring lead as shown in the diagram. Fasten the measuring lead to the screen with the clip (3).

✱ Connect the wires, as shown below.

✱ Connect the pluggable screw terminals of row 1 (1) and row 2 (2) to the instrument slots.

This example is only valid for connecting the JUMO tecLine CR-4P conductivity sensor to a JUMO AQUIS 500 CR transmitter/controller for conductivity!

(1)

(2)

(3)

17

5 Installation

Measuring sensor connection

Terminal assignment

Terminal 1 - RDTerminal 2 - GRTerminal 3 - PKTerminal 4 - BLTerminal 8 - YETerminal 9 - GNTerminal 10 - BN

Connection of JUMO dTRANS CR 02

ϑResistance thermometer

SC = shield

Row 1

Row 2

Conductivity sensor

(1) Row 1 (a) Option 1 (b) Option 2 (c) Option 3(2) Row 2 Main input board

(conductivity/resistance/temperature/standard signal)(3) Row 3 PSU board

(power supply/2× relays)

1234

1234

5678

678910

9101112

4 L1(L+)

5689111213151617

N(L-)

1112131415

(a)(b)(c)

(1)

(3)

(2)

18

6 Calibration

6.1 Notes

6.2 GeneralJUMO tecLine CR-4P conductivity sensors are exactly gaged at the factory.The cell constant of every measuring sensor is documented both on the cellstem and on the calibration certificate that is also supplied.

This cell constant should be entered directly into the connected transmitter(e. g. JUMO AQUIS 500 CR).

In combination with the JUMO AQUIS 500 CR, measuring accuracy in the20 µS/cm to 600 mS/cm range is better than 5 %. To achieve far greatermeasuring accuracy, calibrate the transmitter close to its later working point.

To monitor and increase the quality of measurement, the conductivitymeasurement chain (conductivity sensor + connecting cable + transmitter)should be regularly calibrated.

Reference solutions

It is advisable to use one of the following reference solutions for calibration:

• ASTM D 1125, reference solution B: 0.1 N KCl with 12856 µS/cm• DIN 38404, Part 8, Section 8.3: 0.1 mol/l KCl with 12.95x103 µS/cmHowever, any calibration solution in the medium conductivity range can alsobe used.

6.3 JUMO AQUIS 500 CR settings

The following settings are the minimum that have to be made:

• Cell type (type of connection): 4-electrode or 4-wire• Nominal cell constant 1.0 1/cm• Relative cell constant as % (see sensor nameplate or

certificate)Einstellungen am JUMO dTRANS CR 02

Ageing and contamination (deposits) can cause the cell constantof the conductivity sensor to change.

The transmitter should therefore be calibrated to the connectedconductivity sensor at regular intervals (subject to the measuringmaterial and the operating conditions)!

It is essential to comply with the JUMO AQUIS 500 CR operatinginstructions (B 202565.0)!

19

7 Maintenance/troubleshooting

7.1 Cleaning the conductivity sensor

• Light contamination can be wiped off with a soft, cleansing tissue, or similar

• Wash off sticky contamination or greasy and oily contamination with a hotrinsing agent solution and a soft cloth or soft brush; Ethanol can also beused to clean the sensor, if necessary

• Diluted hydrochloric acid (3 % by weight) can also be used to dissolve thecontamination in the event of calciferous coatings or precipitated metalhydroxides or metal oxides

• If none of the methods mentioned above remove the contamination, othersolvents, acids or caustic solutions may be used, with the aid of ultrasonicbaths where required; in this case, it is necessary to ensure that the conductivity sensorcomponents are resistant to the cleaning agents being used, see section 8"Technical data"

Conductive conductivity sensors are not authorized for use inhighly adherent, oily or glutinous media - we recommend using ourinductive conductivity measuring instruments here!

After cleaning the conductivity sensor, always rinse it with water!

The conductive conductivity sensor electrodes are in directcontact with the measurement medium. Regular cleaning musttherefore be performed, relative to the contaminationsusceptibility of the measuring material!

Abrasive cleaners have limited suitability! The measurementelectrodes must not be damaged!

20

7 Maintenance/troubleshooting

7.2 TroubleshootingTroubleshooting must always consider all the components of the conductivitymeasurement chain! The transmitter and the connecting cable must also betested, as well as the conductivity sensor.

The conductivity sensor can also be tested for short-circuits or internalcontact problems, see section 2 "Description", part "Measuring sensors" andsection 5.2 "Terminal assignment and wiring colors". A continuity tester (such as the diode tester of a multimeter) is needed for this.

Error Possible cause RemedyMeasurement value is too high or too low

Conductivity sensor is dirty

Clean the conductivity sensor

The transmitter does notdisplay conductivity(e.g. display shows "0")

Broken lead or incorrect electrical connection

Check the electricalconnection

Measuring sensor exposed toair (not fully immersed)

Check the measuring sensor installation location. Is measuring material present?

Conductivity displayed by transmitter is too high or too low

The measuring sensor electricalconnection is incorrect:poles are inverted or "right - left" assignment is incorrect

Check the electrical connection

The transmitter does notdisplay temperature

Broken lead or incorrect electrical connection

Check the electrical connection

Display value unstable, fluctuating

Malfunction caused by incorrectly/insufficientlyshielded connecting cable

Use CR-4P cables for connection

Malfunction caused by gas bubbles

Check cable connection and cable routingCheck installation location andposition of the measuringsensor

21

8 Technical data

Typical measuring range1 1 µS/cm to approx. 600 mS/cmCell constant2 typically, K = 0.3 - 0.4 cm-1

Operating temperature -10 to +120 °C, briefly +140 °C (sterilization)Maximum pressure 16 bar at 25 °C

6 bar at -10°C and +140 °CTemperature measurement With Pt1000, DIN EN 60751 Class AElectrical connection3 M12 connectorProtection IP65Fitting length 18 mm

38 mm48 mm (see Dimensions)

Materials in contact with the measuring medium

• Cell housing

• Electrodes

• Probe pocket

• Seal

FDA compliant

PEEK

Stainless steel 1.4435 (316L)

Stainless steel 1.4435 (316L)

EPDM (other material on request)Process connection JUMO PEKA4 (EHEDG-certified)

Available process connection adapters:

• Varivent DN 40-125, stainless steel 1.4435 (316L)

• Clamp DN 25/32/40 and DN 50, stainless steel 1.4435 (316L)

• Aseptic DN 40 and DN 50, stainless steel 1.4435 (316L)

• Aseptic NKS DN 40, stainless steel 1.4435 (316L)Measuring sensor installation Only possible in conjunction with JUMO PEKA process

connection adapters!c

Surface quality (roughness) Stainless steel components ≤ 0.6 µm

Plastic components ≤ 0.8 µm

1 Measuring ranges are also dependent on the transmitter being used.2 The measured cell constant is recorded on the stem of the conductivity sensor.

A cell constant deviation can be adjusted at the transmitter.3 The CR-4P cable is required for connection (see section 5.3 "CR-4P cable")4 See 4.2 "JUMO PEKA process connection adapter" and data sheet 409711.

22

JUMO GmbH & Co. KG JUMO Instrument Co. Ltd. JUMO Process Control, Inc.Street address:Moritz-Juchheim-Straße 136039 Fulda, GermanyDelivery address:Mackenrodtstraße 1436039 Fulda, GermanyPostal address:36035 Fulda, GermanyPhone: +49 661 6003-0Fax: +49 661 6003-607E-mail: [email protected]: www.jumo.net

JUMO HouseTemple Bank, RiverwayHarlow - Essex CM20 2DY, UKPhone: +44 1279 63 55 33Fax: +44 1279 63 52 62E-mail: [email protected]: www.jumo.co.uk

6733 Myers RoadEast Syracuse, NY 13057, USAPhone: 315-437-5866

1-800-554-5866Fax: 315-437-5860E-mail: [email protected]: www.jumousa.com

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